CN113071526B - Structural anticorrosion and drainage structure of motor train unit - Google Patents

Abstract

The invention provides a structural anticorrosion and drainage structure of a motor train unit, which relates to the technical field of vehicle body anticorrosion and drainage and comprises a roof cavity, a side wall cavity, an end wall cavity and a chassis cavity, wherein the end wall cavity, the roof cavity, the side wall cavity and the chassis cavity are respectively separated from one another and are respectively provided with a drainage component for outwards draining water; an anti-corrosion corner fitting located at the corner of the end door is further arranged between the outer end wallboard and the inner end wallboard, is a hollow component and is provided with a hollow cavity deviating from the end wall. According to the structural anticorrosion and drainage structure of the motor train unit, the roof cavity, the side wall cavity and the underframe cavity are mutually separated, so that the corrosion to vehicle body components caused by the fact that accumulated water in the cavities penetrates through different cavities is avoided, the anticorrosion corner piece is arranged at the end door corner, the thickness of the anticorrosion corner piece is close to that of an inner end wall plate and an outer end wall plate due to the hollow arrangement of the anticorrosion corner piece, the deformation after welding caused by the fact that the thickness difference of plates is too large in the welding process is avoided, the stress path distribution of the end door corner is optimized, and the anticorrosion effect is achieved.

Description

Structural anticorrosion and drainage structure of motor train unit

Technical Field

The invention belongs to the technical field of vehicle body corrosion prevention and drainage, and particularly relates to a structural corrosion prevention and drainage structure of a motor train unit.

Background

Each part of the existing high-speed motor train unit is generally formed by welding long and large sectional materials, and all cavities of a car roof, a side wall and an end wall are communicated with each other. Because need in the installation to the section bar trompil in order to arrange the cable or provide the installation interface, so the inside not enough problem of leakproofness of existence in the die cavity more, the automobile body produces manufacturing, storage, transportation in-process rain, snow or moist air get into the die cavity and can cause unexpected intaking, the die cavity that the automobile body harm of easily taking place accident in the vehicle operation in-service process caused intakes, easily produces the comdenstion water in the die cavity under cold and hot alternate environment. If the accumulated water in the roof flows into the cavities of the side walls, the end walls and the underframe, the structure of the car body is corroded and damaged, and the service life of the car body is seriously influenced. At low temperatures, these waters also freeze and expand, further exacerbating the breakage of the vehicle body.

Disclosure of Invention

The invention aims to provide a structural anticorrosion and drainage structure of a motor train unit, which can realize independent collection and drainage of accumulated water in each cavity and avoid corrosion of a plurality of parts of a train body.

In order to achieve the purpose, the invention adopts the technical scheme that: the motor train unit structural anticorrosion and drainage structure comprises a roof cavity formed by an outer top plate and an inner top plate, a side wall cavity formed by an outer side wall plate and an inner side wall plate, an end wall cavity formed by an outer end wall plate and an inner end wall plate, and an underframe cavity formed by an outer bottom plate and an inner bottom plate, wherein the end wall cavity, the roof cavity, the side wall cavity and the underframe cavity are respectively separated from one another and are respectively provided with a drainage component for outwards draining water;

the anti-corrosion corner fitting is a hollow component and is provided with a hollow cavity deviating from the end wall.

In a possible implementation mode, the wall surfaces of the adjacent sides of the inner end wall plate and the outer end wall are respectively provided with a clamping groove, the anti-corrosion corner piece is provided with a clamping convex block used for clamping in the clamping groove, the clamping convex block is provided with two adjacent right-angle side plates which are arranged and used for forming an end wall cavity, one end, far away from the right-angle side plates, of each right-angle side plate is provided with a welding base plate extending outwards, and a gap is formed between each welding base plate and the anti-corrosion corner piece.

In one possible implementation manner, the motor train unit structural anticorrosion and drainage structure further comprises an interface assembly which is arranged on the outer bottom plate and is positioned at the periphery of the interface, the interface assembly comprises a base plate and a flange frame, and the base plate is attached to the outer bottom plate and is positioned at the periphery of the interface; the flange frame is stacked on the base plate, and an electric isolation composite gasket is arranged between the flange frame and the base plate.

In some embodiments, the structural anti-corrosion and drainage structure of the motor train unit further comprises a cast aluminum assembly penetrating through the roof or the side wall, and the cast aluminum assembly is bonded or welded on the roof or the side wall and used for forming a roof cavity or a side wall cavity.

In a possible implementation mode, the inner bottom plate is provided with a communication hole for communicating the end wall cavity with the bottom frame cavity, and the communication hole is arranged close to the bottom frame boundary beam and used for guiding water in the end wall cavity to the bottom frame cavity.

In a possible implementation mode, the roof cavity comprises a flat top cavity formed by an outer flat top plate and an inner flat top plate, a round top cavity formed by the outer flat top plate and the inner flat top plate, and a high-pressure box type cavity formed by a high-pressure box outer plate and a high-pressure box inner plate, the round top cavity is adjacent to the flat top cavity, the high-pressure box type cavity is sunken downwards and arranged on the round top cavity or the flat top cavity, and the flat top cavity, the round top cavity and the high-pressure box type cavity are respectively arranged in a mutually separated mode and are respectively connected with a drainage assembly.

In some embodiments, the end parts of the outer circular top plate and the inner circular top plate are provided with first connecting pieces capable of plugging the end part of the dome cavity, the end parts of the outer flat top plate and the inner flat top plate are provided with second connecting pieces capable of plugging the end part of the flat top cavity, and the first connecting pieces and the second connecting pieces are connected in a clamping mode to connect the flat top of the vehicle body and the dome of the vehicle body and separate the flat top cavity and the dome cavity.

In some embodiments, the first connecting piece is provided with a downward opening, the lower edges of the two side plates of the first connecting piece are bent towards the adjacent side to form a first clamping portion, and the side portion of the first connecting piece is provided with a first clamping block clamped below the excircle top plate and a second clamping block clamped above the inner circle top plate;

the second connecting piece is provided with an upward opening, the upper edges of two side plates of the second connecting piece are respectively provided with a second clamping part clamped outside the first clamping part, and the side part of the second connecting piece is provided with a bearing plate which is supported below the outer flat top plate and is connected with the outer flat top plate;

the first clamping portion and the second clamping portion are clamped to connect the vehicle body flat top and the vehicle body dome.

In one possible implementation mode, the drainage assembly comprises a connecting seat, a drainage pipe shell, a core body, an elastic part, a sealing ring and a drainage head, wherein the connecting seat is used for being connected to a vehicle body and is provided with a connecting pipe extending outwards; the periphery of the lower end of the structural anticorrosion and drainage structure connecting pipe of the motor train unit is provided with a clamping table protruding inwards; the core body is arranged in the connecting pipe and the drainage pipe shell in a sliding mode, the axial middle of the core body is provided with a boss protruding towards the outer periphery, the boss is abutted to the clamping table, the top surface of the core body is provided with an upper opening extending downwards, the bottom surface of the core body is provided with a lower opening extending upwards, the side wall of the core body is respectively provided with an upper water through hole communicated with the upper opening and a lower water through hole communicated with the lower opening, the upper opening and the upper water through hole can enable water in the connecting pipe to enter the drainage pipe shell, and the lower opening and the lower water through hole can enable water in the drainage pipe shell to flow out from the lower end; the elastic piece is sleeved on the core body, the upper end of the elastic piece is abutted against the lower end face of the connecting pipe, and the lower end of the elastic piece is abutted against the boss and is used for downwards jacking the core body; the sealing ring is sleeved on the core body and positioned below the boss, and when the elastic piece supports the core body downwards, the sealing ring is abutted against the clamping table and is sealed so as to prevent water from flowing into the lower water through hole; the drainage head is detachably connected below the drainage pipe shell and is provided with a push ring extending upwards, and the push ring can push the core body upwards to the position where the sealing ring is separated from the clamping table, so that water flows into the lower opening from the drainage pipe shell and flows out outwards.

In some embodiments, the lower portion of the core is provided with a polygonal platform protruding towards the periphery, the drain pipe shell is provided with a polygonal hole which is in sliding fit with the polygonal platform to limit the circumferential rotation of the core, the lower end of the core is in threaded connection with a closed end cap, and the upper end face of the closed end cap is abutted with the lower end face of the drain pipe shell to pull down the core to the sealing ring to be in sealing contact with the clamping platform.

The scheme shown in the embodiment of the application, compared with the prior art, the EMUs structural corrosion prevention and drainage structures that this embodiment provided, with the roof die cavity, side wall die cavity and chassis die cavity are mutual separation, avoid the inside ponding of die cavity to pass different die cavities and cause the corruption that leads to the fact the automobile body member, the effectual life-span that prolongs the automobile body, anticorrosive corner fittings has been established at the end door angle, the cavity setting of anticorrosive corner fittings makes it close with interior end wallboard and outer end wallboard thickness, the postweld deformation that avoids the too big cause of welding process medium plate thickness difference, end door angle atress route distribution has been optimized, good anticorrosive effect has been realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic partial sectional structural view of a structural anticorrosion and drainage structure of a motor train unit according to an embodiment of the invention;

FIG. 2 is a schematic sectional view of the main view of the embodiment in FIG. 1;

FIG. 3 is a schematic structural diagram of a vehicle body according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the corrosion-resistant corner fitting of FIG. 1 according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an interface module according to an embodiment of the present invention;

fig. 6 is an exploded schematic view of the bottom frame, the end wall, and the side wall according to the embodiment of the present invention;

FIG. 7 is a schematic view of a junction between a vehicle body dome and a vehicle body deck according to an embodiment of the present invention;

FIG. 8 is a schematic view of a connecting node structure of a vehicle body ceiling according to an embodiment of the present invention;

FIG. 9 is a schematic view of a connecting node between a roof and an end wall of a vehicle body according to an embodiment of the present invention;

fig. 10 is an exploded view of a drain assembly according to an embodiment of the present invention;

FIG. 11 is a schematic sectional view illustrating a drainage state of the drainage assembly of FIG. 10 according to an embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view illustrating a locked state of the drain assembly of FIG. 10 according to an embodiment of the present invention;

FIG. 13 is a schematic structural view of the core shown in FIG. 10 according to an embodiment of the present invention;

fig. 14 is a schematic view of a connection structure of a side wall cavity and a drainage assembly according to an embodiment of the present invention;

fig. 15 is a schematic view showing a coupling structure of an interior floor of a base frame and a drain assembly according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

11. a dome shaped cavity; 111. a first connecting member; 1111. a first clamping part; 112. a first clamping block; 113. a second fixture block; 114. connecting the profiles; 115. a connecting portion; 12. a flat-top cavity; 121. a second connecting member; 1211. a second clamping part; 122. a support plate; 123. a plugging plate; 13. an end wall cavity; 131. a communicating hole; 14. a chassis cavity; 15. a high pressure tank cavity; 16. a side wall cavity; 2. an anti-corrosion corner fitting; 21. a hollow cavity; 22. clamping the convex block; 23. a right angle sideboard; 24. welding a base plate; 3. an interface component; 31. a base sheet; 32. an electrically isolating composite spacer; 33. a flange frame; 4. casting an aluminum component; 5. a drainage assembly; 51. a connecting seat; 511. a connecting pipe; 52. a drain pipe shell; 521. clamping a platform; 53. a core body; 531. a boss; 532. an upper opening; 533. water passing holes are arranged; 534. a lower opening; 535. a lower water through hole; 54. an elastic member; 55. a drainage head; 551. a push ring; 56. a seal ring; 57. closing the end cap; 58. a multilateral table; 61. a vehicle roof; 611. a vehicle body dome; 6111. an excircle top plate; 6112. the inner circular top plate; 612. flattop of the vehicle body; 6121. an outer flat top plate; 6122. an inner flat top plate; 62. a side wall; 621. an outer side wall panel; 622. an inner side wall panel; 63. an end wall; 631. an outer end wall panel; 632. an inner end wall panel; 633. an end beam; 64. a chassis; 641. an outer base plate; 642. an inner bottom plate; 643. a floor is arranged inside; 65. a high-pressure tank seat; 651. a high-pressure box outer plate; 652. high-pressure box inner panel.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and are therefore not to be considered limiting. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a number" means two or more unless specifically limited otherwise.

The motor car body is mainly divided into a roof 61, a side wall 62, an end wall 63 and a chassis 64, and cavities are formed in the parts. The cavity of the existing car body is in a mutually communicated form, and when water is accumulated or accidentally enters a car body at a certain position due to poor sealing, the water is easy to diffuse or flow in the whole cavity of the car body, so that a plurality of parts of the car body can be corroded. When water enters the roof 61, the water flows into the cavity inside the side wall 62 and the cavity inside the end wall 63, and then flows into the cavity inside the bottom frame 64, so that the parts flowing through the region are corroded. Even if water enters the cavity inside the underframe 64, the water escapes into the cavity inside the end wall 63 or the side wall 62 along with air in the process of temperature change, and the service lives of a plurality of parts are affected.

The roof 61 cavity, the side wall cavity 16, the end wall cavity 13 and the chassis cavity 14 are isolated independently to form independent cavities respectively, so that water or air containing water can be prevented from circulating in the cavities, the water is effectively collected and discharged through the corresponding drainage assemblies 5, the influence on other cavity components can be reduced to the maximum extent, a good drainage effect is achieved, and the normal use of the automobile body component is guaranteed. In order to simplify the drainage structure, the end wall cavity 13 is communicated with the underframe cavity 14 through the communication hole 131, so that the trouble of independently arranging the drainage component 5 at the outer side of the end wall cavity 13 is eliminated, the whole vehicle structure is simplified, and the good drainage effect is also achieved.

Taking a roof 61 cavity as an example, the roof 61 cavity is mainly in a form of an outer top plate positioned at the upper part and an inner top plate positioned at the inner side of the outer top plate, the adjacent part of the roof 61 cavity and a side wall 62 is blocked by a plate type component, so that the roof 61 cavity is effectively isolated from a side wall cavity 16, and the adjacent two ends of the roof 61 cavity and an end wall 63 are also blocked by the plate type component, so that the roof 61 cavity and an underframe cavity 14 are separated from each other, and the independent collection and discharge of water are realized.

In order to ensure the structural strength, rib plates are respectively arranged in the roof 61 cavity, the side wall cavity 16, the end wall cavity 13 and the chassis cavity 14, and when the accumulated water is collected and discharged, through water discharge holes can be formed in the rib plates, so that the accumulated water can be collected at the water discharge assembly 5 in a centralized manner, and finally, the effect of uniform discharge is achieved.

Referring to fig. 1 and fig. 15 together, the structural corrosion prevention and drainage structure of the motor train unit according to the present invention will now be described. The motor train unit structural anticorrosion and drainage structure comprises a roof 61 cavity formed by an outer top plate and an inner top plate, a side wall cavity 16 formed by an outer side wall plate 621 and an inner side wall plate 622, an end wall cavity 13 formed by an outer end wall plate 631 and an inner end wall plate 632, and an underframe cavity 14 formed by an outer bottom plate 641 and an inner bottom plate 642, wherein the end wall cavity 13, the roof 61 cavity, the side wall cavity 16 and the underframe cavity 14 are respectively separated from one another and are respectively provided with a drainage component 5 for outwards draining water;

an anti-corrosion corner fitting 2 which is located at an end door corner and used for forming an end wall cavity 13 is further arranged between the outer end wall plate 631 and the inner end wall plate 632, and the anti-corrosion corner fitting 2 is a hollow component and is provided with a hollow cavity 21 which is far away from the end wall 63.

The unexpected condition of intaking of inside die cavity of section bar may appear in the automobile body part in production, storage, transportation, and the automobile body operation is also likely to generate the comdenstion water in-service process, and in addition, the automobile body damage also can cause the die cavity to intake when the accident happens, and die cavity ponding if pass different die cavities can lead to the fact the corruption to a plurality of members in the automobile body, corresponds the effectual life-span that has prolonged the automobile body of the mode that sets up drainage component 5 to single die cavity.

Compared with the prior art, the motor train unit structural anticorrosion and drainage structure provided by the embodiment separates the roof 61 cavity, the side wall cavity 16 and the underframe cavity 14 from each other, prevents accumulated water in the cavities from penetrating through different cavities to cause corrosion to vehicle body components, and effectively prolongs the service life of a vehicle body; the thickness of the anti-corrosion corner fitting 2 arranged at the end door corner is close to the thickness of the plate body at the connecting part of the inner end wall plate 632 and the outer end wall plate 631, so that the deformation after welding caused by overlarge thickness difference in the welding process is avoided, the stress path distribution of the end door corner is optimized, and a good anti-corrosion effect is realized.

Above-mentioned structure not only can collect ponding under the general condition and discharge, when the unexpected intake of automobile body certain department, can also avoid the influence to other die cavity internals, realizes collecting alone of water and discharges, conveniently deals with above-mentioned proruption situation.

In some possible implementations, the characteristic roof 61 cavity may be configured as shown in fig. 1 and 4. Referring to fig. 1 and 4, the adjacent wall surfaces of the inner end wall plate 632 and the outer end wall plate 631 are respectively provided with a clamping groove, the anti-corrosion corner fitting 2 is provided with a clamping convex block 22 used for being clamped in the clamping groove, the clamping convex block 22 is provided with two right-angle side plates 23 which are adjacently arranged and used for forming the end wall cavity 13, one end of each right-angle side plate 23, which is far away from the corresponding right-angle side plate, is provided with a welding backing plate 24 extending outwards, and a gap is formed between the welding backing plate 24 and the anti-corrosion corner fitting 2.

The corrosion-proof corner fitting 2 is a hollow component, and the opening of the hollow cavity 21 faces one side of the door body of the end wall 63. The thickness of the anti-corrosion corner fitting 2 is similar to the thickness of the inner end wall plate 632 and the outer end wall plate 631, when the anti-corrosion corner fitting 2 is welded between the inner end wall plate 632 and the outer end wall plate 631, a preheating process required by overlarge thickness is omitted, heat dissipation efficiency of each position is similar, and postweld deformation caused by overlarge thickness difference in the welding process is avoided.

In addition, the two right-angle side plates 23 of the anti-corrosion corner fitting 2 can also block the end wall cavity 13, so that the end wall cavity 13 forms an independent closed space, the communication of moist gas in each cavity caused by the communication with other cavities is avoided, and the drying of the interior of the end wall cavity 13 is convenient to guarantee.

The end wall 63 adopts a form that an upper transverse plate and a lower vertical plate are spliced at an angle of 45 degrees, so that the problem of stress concentration is reduced, the stress path distribution of an end door angle is optimized, the corrosion phenomenon of the end door angle position is effectively avoided by combining the arrangement of the anti-corrosion corner fitting 2, and a good anti-corrosion effect is achieved.

In some possible implementations, the roof 61 cavity described above may be configured as shown in fig. 5. Referring to fig. 5, the structural anticorrosion and drainage structure of the motor train unit further includes an interface assembly 3 disposed on the outer bottom plate 641 and located at the periphery of the interface, the interface assembly 3 includes a base sheet 31 and a flange frame 33, and the base sheet 31 is attached to the outer bottom plate 641 and located at the periphery of the interface; the flange frame 33 is stacked on the base plate 31, and an electrically isolating composite gasket 32 is disposed between the flange frame and the base plate 31.

The vehicle body chassis 64 is generally disposed at an interface for external communication, and when the vehicle body chassis is installed, the bottom surface of the outer bottom plate 641 is coated with primer and then is in close contact with an external connector, and the primer surface and the external connector are in contact with each other for a long time in a complex environment, so that pitting corrosion of the contact surface is caused, corrosion phenomenon occurs, and electrochemical corrosion is also caused.

In this embodiment, the base sheet 31 and the outer bottom plate 641 are directly welded, and an electrically isolating composite gasket 32 (e.g., a teflon gasket) having an isolating function is disposed between the contact surfaces of the base sheet 31 and the flange frame 33 to isolate the electrochemical potential difference. Sealing glue is arranged between the flange frame 33 and the outer bottom plate 641, so that the sealing performance is further guaranteed, the phenomenon that water accumulated in the bottom frame cavity 14 is accumulated due to the fact that a leak enters humid gas into the bottom frame cavity 14 is avoided, and corrosion of internal components of the bottom frame 64 is effectively avoided.

In some possible implementations, the roof 61 cavity described above may be configured as shown in fig. 5. Referring to fig. 5, the structural anticorrosion and drainage structure of the motor train unit further comprises a cast aluminum assembly 4 penetrating through the roof 61 or the side wall 62, and the cast aluminum assembly 4 is bonded or welded on the roof 61 or the side wall 62 and used for forming a roof 61 cavity or a side wall cavity 16.

When a large-area hole needs to be formed in the roof 61 or the side wall 62, the edge position of the roof 61 cavity or the side wall cavity 16 is blocked by the cast aluminum assembly 4, so that the internal sealing performance of the roof 61 cavity or the side wall cavity 16 is ensured. The cast aluminum assembly 4 is an aluminum member, is made of the same material as an aluminum profile of the vehicle body, can be welded and connected, has good sealing performance, is convenient for reducing the inflow of damp gas to the cavity of the vehicle roof 61 or the cavity 16 of the side wall, and reduces the corrosion probability of the member. In addition, the cast aluminum assembly 4 and the aluminum profile of the vehicle body can be connected in a bonding mode.

In some possible implementations, the roof 61 cavity described above may be configured as shown in fig. 6. Referring to fig. 6, the inner bottom plate 642 is provided with a communication hole 131 for communicating the end wall cavity 13 with the bottom frame cavity 14, and the communication hole 131 is arranged near the edge beam of the bottom frame 64 for guiding water in the end wall cavity 13 to the bottom frame cavity 14.

In order to simplify the drainage structure, the end wall cavity 13 is communicated with the underframe cavity 14 through the communication hole 131, so that the trouble of independently arranging the drainage component 5 at the outer side of the end wall cavity 13 is eliminated, the whole vehicle structure is simplified, and the good drainage effect is also achieved.

In some possible implementations, the roof 61 cavity described above may be configured as shown in fig. 3. Referring to fig. 3, the roof 61 cavity includes a flat top cavity 12 formed by an outer flat top plate 6121 and an inner flat top plate 6122, a dome cavity 11 formed by an outer circular top plate 6111 and an inner circular top plate 6112, and a high pressure box type cavity 15 formed by a high pressure box outer plate 651 and a high pressure box inner plate 652, the dome cavity 11 is adjacent to the flat top cavity 12, the high pressure box cavity 15 is recessed downwards and arranged on the dome cavity 11 or the flat top cavity 12, and the flat top cavity 12, the dome cavity 11 and the high pressure box cavity 15 are respectively arranged in a mutually separated manner and are respectively connected with a drainage assembly 5.

For a vehicle body in which the roof 61 is not structurally simple, it is necessary to separate the roof 61 cavity. For the vehicle roof 61 with the vehicle body dome 611 and the vehicle body flat top 612 combined and the high-pressure tank seat 65 arranged on the vehicle body dome 611, the cavity of the vehicle roof 61 needs to be split into the flat top cavity 12, the dome cavity 11 and the high-pressure tank cavity 15, each cavity is independently arranged, and the respective drainage assembly 5 is correspondingly arranged, so that partition isolation and partition drainage are realized.

In some embodiments, referring to fig. 7, the end portions of the outer circular top plate 6111 and the inner circular top plate 6112 are provided with a first connecting piece 111 capable of blocking the end portion of the dome cavity 11, the end portions of the outer flat top plate 6121 and the inner flat top plate 6122 are provided with a second connecting piece 121 capable of blocking the end portion of the flat top cavity 12, and the first connecting piece 111 and the second connecting piece 121 are connected in a clamping manner to connect the vehicle body flat top 612 and the vehicle body dome 611 and separate the flat top cavity 12 and the dome cavity 11.

In making the connection between body flat top 612 and body dome 611, it is desirable to ensure that the sealing properties of dome cavity 11 and flat top cavity 12 are maintained and that a good transition be made between body flat top 612 and body dome 611. The first connecting piece 111 is arranged at the end parts of the outer dome plate 6111 and the inner circular top plate 6112, the second connecting piece 121 is arranged at the end parts of the outer flat top plate 6121 and the inner flat top plate 6122, and effective connection between the vehicle body flat top 612 and the vehicle body dome 611 is realized through clamping connection of the first connecting piece 111 and the second connecting piece 121, so that the vehicle body flat top 612 and the vehicle body dome 611 are reliably connected.

The first connecting piece 111 can seal the end part of the dome cavity 11, the second connecting piece 121 can seal the end part of the flat top cavity 12, effective isolation between the flat top cavity 12 and the dome cavity 11 is achieved, accumulated water in the flat top cavity 12 and accumulated water in the dome cavity are discharged through the drainage component 5, and corrosion to a vehicle body is avoided.

In some embodiments, the first connecting part 111 has a downward opening, lower edges of two side plates of the first connecting part 111 are bent toward an adjacent side to form a first clamping portion 1111, and a first clamping block 112 clamped below the outer circular top plate 6111 and a second clamping block 113 clamped above the inner circular top plate 6112 are disposed on a side portion of the first connecting part 111;

the second connecting member 121 has an upward opening, the upper edges of the two side plates of the second connecting member 121 are respectively provided with a second clamping portion 1211 clamped outside the first clamping portion 1111, and the side portion of the second connecting member 121 is provided with a supporting plate 122 supported below the outer flat top plate 6121 and connected with the outer flat top plate 6121;

the first clamping portion 1111 is clamped with the second clamping portion 1211 to connect the body flat top 612 and the body dome 611.

The first connecting member 111 is a metal plate member having a downward opening, so that the connecting strength is ensured and the consumption of material is reduced. The lower limb of first connecting piece 111 has set up the first joint portion 1111 that draws in to adjacent one side, it is corresponding, the top edge at second connecting piece 121 has set up and has been located the first joint portion 1111 outside, and can with first joint portion 1111 joint complex second joint portion 1211, the two is when carrying out the joint connection, second joint portion 1211 still has certain bearing effect to first joint portion 1111, realize below automobile body flat top 612 to the supplementary bearing of top automobile body dome 611, guarantee the stability of the two relative position.

The first fixture block 112 and the second fixture block 113 arranged at the side portion of the first connecting piece 111 can be respectively clamped between the outer circular top plate 6111 and the inner circular top plate 6112, and can seal the end portion of the dome-shaped cavity 11. The support plate 122 disposed outside the second connecting member 121 supports the outer flat top plate 6121 and the inner flat top plate 6122, and is connected to the vehicle body flat top 612 plate by welding.

In some embodiments, the flat top mold cavity 12 described above may be configured as shown in FIG. 8. Referring to fig. 8, a blocking plate 123 is arranged between the outer ends of the outer flat top plate 6121 and the inner flat top plate 6122, and the blocking plate 123 is located at one end far away from the dome-shaped cavity 11 and is used for forming a flat-top cavity 12; a connecting section bar 114 is arranged between the outer ends of the outer circular top plate 6111 and the inner circular top plate 6112, the connecting section bar 114 is positioned at one end far away from the flat top cavity 12 and used for forming the dome cavity 11, and one side of the connecting section bar 114 far away from the dome cavity 11 is connected with the end beam 633 of the end wall 63 through a connecting part 115.

The inner flat top plate 6122 and the outer flat top plate 6121 are both flat plate structures, have good flatness, and can be directly plugged by using plate-shaped members, namely the plugging plate 123, when the end part of the flat top cavity 12 is plugged. The inner flat top plate 6122 and the outer flat top plate 6121 are made of aluminum alloy profiles, correspondingly, the plugging plate 123 is made of the same material, and the plugging plate 123 is respectively connected with the inner flat top plate 6122 and the outer flat top plate 6121 in a welding mode.

The dome cavity 11 is provided with a connecting profile 114 at the end remote from the flat top cavity 12, the connecting profile 114 having a position between the body dome 611 and the end wall 63. The connecting section 114 can plug the end portions of the outer dome plate 6111 and the inner circular top plate 6112 to plug the outer end of the dome-shaped cavity 11, and meanwhile, the connecting section 115 is connected with the end beam 633 of the end wall 63 to connect the car body dome 611 with the end wall 63 and play a role in plugging the dome-shaped cavity 11. The drainage component 5 of the dome-shaped cavity 11 is arranged at the outer edge of the dome-shaped cavity 11, has good collecting and gathering effects and is convenient for draining accumulated water. The drainage assembly 5 of the flat top cavity 12 is also disposed at the outer edge of the flat top cavity 12.

The high pressure tank mount 65 with the high pressure tank cavity 15 is an integrally formed member having an outer edge that can be placed within the opening of the roof 61, the outer edge being welded to the roof 61 to provide an effective seal, and the lower portion of the high pressure tank cavity 15 being connected to the drain assembly 5.

In some possible implementations, the characteristic roof 61 cavity may be configured as shown in fig. 10 and 14. Referring to fig. 10 and 14, the drain assembly 5 includes a connecting seat 51, a drain pipe housing 52, a core 53, an elastic member 54, a packing 56, and a drain head 55, wherein the connecting seat 51 is used for connecting to a vehicle body and is provided with a connecting pipe 511 extending outward; the periphery of the lower end of the structural anticorrosion and drainage structure connecting pipe of the motor train unit is provided with a clamping table 521 protruding inwards at the lower end of the drainage pipe shell 52; the core body 53 is slidably arranged in the connecting pipe 511 and the drain pipe shell 52, the axial middle part of the core body 53 is provided with a boss 531 protruding outwards to abut against the clamping table 521, the top surface of the core body 53 is provided with an upper opening 532 extending downwards, the bottom surface of the core body 53 is provided with a lower opening 534 extending upwards, the side wall of the core body 53 is respectively provided with an upper water through hole 533 communicated with the upper opening 532 and a lower water through hole 535 communicated with the lower opening 534, the upper opening 532 and the upper water through hole 533 can enable water in the connecting pipe 511 to flow into the drain pipe shell 52, and the lower opening 534 and the lower water through hole 535 can enable water in the drain pipe shell 52 to flow out from the lower end; the elastic member 54 is sleeved on the core body 53, the upper end of the elastic member 54 is abutted with the lower end surface of the connecting pipe 511, and the lower end is abutted with the boss 531 for downwardly supporting the core body 53; the sealing ring 56 is sleeved on the core body 53 and located below the boss 531, and when the elastic member 54 supports the core body 53 downwards, the sealing ring 56 abuts against the clamping table 521 and is sealed to prevent water from flowing into the lower water through hole 535; the water discharge head 55 is detachably connected to the lower part of the water discharge pipe shell 52, and is provided with a push ring 551 extending upwards, the push ring 551 can push the core body 53 upwards until the sealing ring 56 is separated from the clamping table 521, so that water flows into the lower opening 534 from the water discharge pipe shell 52 and flows out outwards.

The drainage component 5 adopts the structure, so that the smooth switching between the drainage process and the plugging process can be realized, and no outside air enters a cavity of a vehicle body in the switching process. When water needs to be drained, the water drainage head 55 is arranged below the water drainage pipe shell 52, the core body 53 moves upwards under the action of the push ring 551, and accumulated water flows out of the lower water through hole 535 and the lower opening 534. After the water drainage is finished, the water drainage head 55 is detached, and under the action of the elastic part 54, the core body 53 moves downwards to enable the sealing ring 56 to be blocked in the clamping table 521, so that air containing moisture outside is prevented from entering a cavity of a vehicle body, and the generation of subsequent accumulated water is avoided.

The connecting seat 51 is an aluminum alloy member, welded to the vehicle body, and is a thin plate member, which can be effectively connected to the outer bottom plate 641, so that the structure can uniformly dissipate heat during the welding process, and reduce welding preheating. Connection tube 511 is screwed to connection holder 51. The connection pipe 511 of the connection socket 51 is screw-coupled to the drain case 52, and the core 53 provided in the connection pipe 511 and the drain case 52 is movable in the axial direction. The elastic part 54 can apply downward jacking force to the boss 531 of the core body 53, so that the lower end of the core body 53 moves downwards, the sealing ring 56 effectively seals the gap between the outer wall of the core body 53 and the inner wall of the clamping table 521, the sealing effect is achieved, accumulated water in the drainage pipe shell 52 is prevented from being discharged from the lower end of the drainage pipe shell 52, the reliable self-locking effect is realized, and the influence on the drying environment inside the cavity due to the fact that external humid gas enters the cavity of the vehicle body is avoided.

When drainage is needed, the drainage head 55 is mounted to the lower end of the drainage pipe shell 52, the core body 53 is pushed upwards by the push ring 551 on the drainage head 55, the elastic piece 54 is compressed and contracted, the sealing ring 56 is separated from the clamping table 521, a water passing gap is formed between the core body 53 and the drainage pipe shell 52, and the lower end of the drainage pipe shell 52 is opened, so that the drainage function is realized.

When water is drained, in order to enable accumulated water in the cavity to be drained downwards from the connecting pipe 511 into the drain pipe shell 52, the core body 53 is provided with the upper opening 532, the upper water passing hole 533 communicated with the upper opening 532 is arranged at a position close to the boss 531, the lower end of the core body 53 is provided with the lower opening 534, and the accumulated water can be drained from the inside of the drain pipe shell 52 to the outside through the lower water passing hole 535 communicated with the lower opening 534, so that self-locking and effective switching of water drainage are realized. When the water discharge head 55 pushes the core body 53 upwards, the upper end of the core body 53 extends into the connecting pipe 511, accumulated water flows into the water discharge pipe shell 52 through the upper opening 532 and the upper water passing hole 533, and flows out from the lower part of the water discharge pipe shell 52 through the lower water passing hole 535 and the lower opening 534, so that the accumulated water is discharged outwards. In order to avoid influencing the external environment, a hose for receiving water and a water collecting device can be arranged below the water discharging head 55, so that the accumulated water can be effectively collected.

In some embodiments, the under water holes 535 of the above-described characteristics may be configured as shown in fig. 11 and 13. The upper water passage holes 533 of the core 53 are symmetrically provided two in the circumferential wall of the core 53, and the lower water passage holes 535 are symmetrically provided two in the circumferential wall of the core 53. When guaranteeing structural strength, still need keep the smooth and easy of drainage, go up water hole 533 and lower water hole 535 and set up two on the perisporium of core 53 respectively in the symmetry, the effectual drainage speed that promotes ponding.

In some embodiments, the above-described characteristic core 53 may be configured as shown in fig. 13. Referring to fig. 13, a polygonal table 58 protruding outward is provided at the lower portion of the core body 53, a polygonal hole which is slidably fitted to the polygonal table 58 to restrict the circumferential rotation of the core body 53 is provided in the drain case 52, a closed end cap 57 is screwed to the lower end of the core body 53, and the upper end surface of the closed end cap 57 abuts against the lower end surface of the drain case 52 to pull down the core body 53 to the packing 56 to be in sealing contact with the locking table 521.

After getting into environments such as tunnel, because automobile body functioning speed is very fast, the automobile body outside can produce high pressure phenomenon in the twinkling of an eye, at this moment, in order to avoid core 53 to receive the high pressure effect to connecting seat 51 one side removal cause with the phenomenon of outside intercommunication, closed end cap 57 in the core 53 lower part has still been set up threaded connection in the below of drain pipe shell 52. The periphery of the lower portion of the core body 53 is provided with a polygonal table 58, and by means of the limitation of the polygonal groove of the closed end cap 57, the circumferential rotation action is not generated, and the threaded connection of the closed end cap 57 below is facilitated. Under the driving action of the threaded connection between the closed end cap 57 and the core body 53, the core body 53 moves to one side close to the closed end cap 57, and the sealing ring 56 is driven to move down to close the gap between the core body 53 and the clamping table 521 tightly, so that the effective isolation from the outside is realized. The arrangement of the plugging end cap effectively avoids the entering of external air flow caused by the upward movement of the core body 53 under the action of external high pressure, avoids the entering of air carrying moisture into the cavity, and realizes the effective isolation of the cavity and the external environment.

In some embodiments, the above-described feature core 53 may be configured as shown in fig. 14. Referring to fig. 14, the connection pipe 511 may have various structures, such as a straight pipe or an L-shaped right-angle pipe, for the drainage module 5 installed at various positions, so that the lower end drain port of the drainage pipe housing 52 is disposed downward. For example, outside the sidewall cavity 16, the connection pipe 511 of the drainage assembly 5 is an L-shaped right-angle pipe, which is favorable for draining accumulated water smoothly, and avoids accumulated water accumulating in the drainage pipe shell 52.

In some embodiments, the drain shell 52 is a transparent member, which facilitates the observation of the height of the accumulated water inside the drain shell, so that the maintenance operator can install the drain shell 52 at the right time to drain the accumulated water.

Furthermore, heating wires can be arranged on the peripheral wall of the drainage pipe shell 52, and when the accumulated water is frozen due to low temperature, the heating wires are heated, so that the damage of components caused by freezing collision is avoided. In addition, a liquid level detection element for detecting the height of the water level can be arranged in the drain pipe shell 52, when the water amount reaches a certain height, a signal is sent to a control unit of the vehicle body, and a maintenance worker can conveniently install the drain head 55 in time to drain the water.

The accumulated water in the underframe 64 in the underframe cavity 14 is discharged through the water discharge component 5 at the lower part of the underframe 64, and the accumulated water in the end wall cavity 13 flows into the underframe cavity 14 through the communication hole 131 at the edge beam of the underframe and then flows out through the water discharge component 5. In addition, referring to fig. 15, water leakage and accumulated water caused by human trouble in some devices such as a tank in the vehicle body, a floor, a toilet, and a kitchen can be discharged by providing a separate drain block 5 on an interior floor 643 of the vehicle body, and an inlet end of the drain block 5 is provided on a surface of the interior floor 643 to collect accumulated water and extend downward to penetrate through the chassis cavity 14 to the outside of the vehicle body, thereby discharging accumulated water on the interior floor 643.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The motor train unit structural anticorrosion and drainage structure is characterized by comprising a roof cavity formed by an outer top plate and an inner top plate, a side wall cavity formed by an outer side wall plate and an inner side wall plate, an end wall cavity formed by an outer end wall plate and an inner end wall plate, and an underframe cavity formed by an outer bottom plate and an inner bottom plate, wherein the end wall cavity, the roof cavity, the side wall cavity and the underframe cavity are respectively separated from one another and are respectively provided with a drainage component for outwards draining water;

an anti-corrosion corner fitting which is positioned at an end door corner and is used for forming an end wall cavity is further arranged between the outer end wall board and the inner end wall board, the anti-corrosion corner fitting is a hollow component and is provided with a hollow cavity which is arranged away from an end wall;

the drainage assembly includes:

the connecting seat is used for being connected to the vehicle body and is provided with a connecting pipe extending outwards;

the drainage pipe shell is connected to the periphery of the lower end of the connecting pipe, and the lower end of the drainage pipe shell is provided with a clamping table protruding inwards;

the core body is arranged in the connecting pipe and the drainage pipe shell in a sliding mode, a boss protruding towards the periphery is arranged in the middle of the core body in the axial direction, the boss is abutted to the clamping table, an upper opening extending downwards is arranged on the top surface of the core body, a lower opening extending upwards is arranged on the bottom surface of the core body, an upper water through hole communicated with the upper opening and a lower water through hole communicated with the lower opening are respectively arranged on the side wall of the core body, the upper opening and the upper water through hole can enable water in the connecting pipe to flow into the drainage pipe shell, and the lower opening and the lower water through hole can enable water in the drainage pipe shell to flow out from the lower end;

the elastic piece is sleeved on the core body, the upper end of the elastic piece is abutted against the lower end face of the connecting pipe, and the lower end of the elastic piece is abutted against the boss and is used for downwards jacking the core body;

the sealing ring is sleeved on the core body and is positioned below the boss, and when the core body is supported downwards by the elastic piece, the sealing ring is abutted against the clamping table and is sealed so as to prevent water from flowing into the lower water through hole;

the drainage head is detachably connected below the drainage pipe shell and is provided with a push ring extending upwards, and the push ring can push the core body upwards until the sealing ring is separated from the clamping table, so that water flows into the lower opening from the drainage pipe shell and flows out outwards;

the lower part of the core body is provided with a polygonal platform protruding towards the periphery, the drainage pipe shell is provided with a polygonal hole which is in sliding fit with the polygonal platform to limit the circumferential rotation of the core body, the lower end of the core body is in threaded connection with a closed end cap, and the upper end face of the closed end cap is abutted against the lower end face of the drainage pipe shell to pull the core body until the sealing ring is in sealing contact with the clamping platform.

2. The structural anticorrosion and drainage structure of a motor train unit as claimed in claim 1, wherein clamping grooves are respectively formed in the wall surfaces of the adjacent sides of the inner end wall plate and the outer end wall plate, the anticorrosion corner piece is provided with a clamping convex block for clamping in the clamping groove, the clamping convex block is provided with two right-angle side plates which are adjacently arranged and used for forming the end wall cavity, one end, far away from the right-angle side plates, of each right-angle side plate is provided with a welding backing plate extending outwards, and a gap is formed between each welding backing plate and the anticorrosion corner piece.

3. The motor train unit structural corrosion prevention and drainage structure of claim 1, further comprising an interface assembly disposed on the outer bottom plate and located at an outer periphery of the interface, wherein the interface assembly comprises:

the base piece is attached to the outer bottom plate and is positioned on the periphery of the interface;

and the flange frame is stacked on the base plate, and an electric isolation composite gasket is arranged between the flange frame and the base plate.

4. The motor train unit structural anticorrosion and drainage structure of claim 3, further comprising a cast aluminum assembly penetrating through a roof or a side wall, wherein the cast aluminum assembly is bonded or welded to the roof or the side wall and used for forming a roof cavity or a side wall cavity.

5. The structural anticorrosion and drainage structure of the motor train unit as claimed in claim 1, wherein the inner bottom plate is provided with a communication hole for communicating the end wall cavity with the underframe cavity, and the communication hole is arranged near the underframe edge beam and used for guiding water in the end wall cavity to the underframe cavity.

6. The structural anticorrosion and drainage structure of motor train unit according to any one of claims 1 to 5, wherein the roof cavity comprises a flat top cavity formed by an outer flat top plate and an inner flat top plate, a dome cavity formed by an outer flat top plate and an inner flat top plate, and a high pressure box type cavity formed by a high pressure box outer plate and a high pressure box inner plate, the dome cavity is arranged adjacent to the flat top cavity, the high pressure box cavity is arranged on the dome cavity or the flat top cavity in a downward concave manner, and the flat top cavity, the dome cavity and the high pressure box type cavity are respectively arranged in a mutually separated manner and are respectively connected with the drainage assembly.

7. The motor train unit structural anticorrosion and drainage structure as set forth in claim 6, wherein the end portions of the outer circular top plate and the inner circular top plate are provided with first connecting pieces capable of plugging the end portions of the dome cavities, the end portions of the outer flat top plate and the inner flat top plate are provided with second connecting pieces capable of plugging the end portions of the flat top cavities, and the first connecting pieces and the second connecting pieces are connected in a clamping manner to connect the flat top of the train body and the dome of the train body and separate the flat top cavities from the dome cavities.

8. The structural anticorrosion and drainage structure of the motor train unit as claimed in claim 7, wherein the first connecting piece has a downward opening, the lower edges of the two side plates of the first connecting piece are bent towards the adjacent side to form a first clamping portion, and the side portion of the first connecting piece is provided with a first clamping block clamped below the outer circular top plate and a second clamping block clamped above the inner circular top plate;

the second connecting piece is provided with an upward opening, the upper edges of two side plates of the second connecting piece are respectively provided with a second clamping part clamped outside the first clamping part, and the side part of the second connecting piece is provided with a bearing plate which is supported below the outer flat top plate and is connected with the outer flat top plate;

the first clamping portion is clamped with the second clamping portion to be connected with a vehicle body flat top and a vehicle body dome.

Images